import numpy as np
arr1 = np.array([[10,20,30],[40,50,60]])
print('2x3的数组arr1: \n',arr1)
arr2 = np.array([[1,2,2],[2,2,3]])
print('2x3的数组arr2: \n',arr2)
print('arr1与arr2的加法运算:\n',arr1+arr2)
print('arr1与arr2的减法运算:\n',arr1-arr2)
print('arr1与arr2的乘法运算:\n',arr1*arr2)
print('arr1与arr2的除法运算:\n',arr1/arr2)
print('arr1与arr2的幂运算:\n',arr1**arr2)